by Mary Chisholm | Oct 5, 2026
A report on how collaboration and knowledge-sharing across jurisdictional boundaries was used to Implement treatments to strategically control existing infestations and minimize spread in areas where invasive buffelgrass has not yet become established
by Mary Chisholm | Oct 5, 2026
The region of Central Arizona has a legacy of open spaces that have supported Arizona’s rapid growth to
this present day. Still, park systems’ growth and operating resources have not kept pace with population
and economic recovery since the 2008 recession. This limited financial capacity and additional demand,
compromise stewardship success in treasured natural areas and diminish quality visitor experiences
for residents and visitors alike. Therefore, Sonoran Institute (SI), in partnership with the Central Arizona
Conservation Alliance (CAZCA), investigated the “state of the parks” within the region to identify the areas of
greatest need among natural, desert open space parks.
by Mary Chisholm | Oct 5, 2026
This applied project draws on theories and research on landscape ecology and ecological design
that show that connectivity between open spaces is beneficial to humans and biodiversity, which
motivates the following research question: what is the optimal open space network based on both
social and ecological criteria for the Phoenix Metro? The results of this project can help inform
planners, regional planners, designers, and other decision makers in identifying opportunities to
build a robust open space network in the Phoenix metro.
by Mary Chisholm | Oct 5, 2026
This primer is designed to assist communities and open space advocates in crafting a compelling case
for open space protection, find funding and start meaningful dialogue and assessment on this topic.
The primer focuses on activities, information sources, talking points about the benefits of open space,
successful local case studies, and key messaging strategies that can be incorporated in a case statement.
by Mary Chisholm | Oct 5, 2026
An informational pamphlet on how to stay safe in the heat with QR codes to additional resources.
by Mary Chisholm | Oct 5, 2026
A brochure on how to identify fountain grass, issues it causes, control methods, and native alternatives
by Mary Chisholm | Oct 5, 2026
Educational material on how to use iNaturalist to upload invasive species
by Mary Chisholm | Oct 5, 2026
A 2 page flyer on fire in the desert and how to live fire safe.
by Mary Chisholm | Oct 5, 2026
The Regional Open Space Strategy (ROSS) is a first iteration road map and action agenda. It is in no way exhaustive. It lays out fundamental initial steps toward unified, cohesive, regional open space conservation, but acknowledges there still exists gaps in information, collaboration, and coordination. In the ROSS, we put forward clear, concise objectives and specific on-the-ground, highly achievable strategies inclusive of the social, cultural, environmental values of communities. When fully implemented, the ROSS will deliver a connected, distinctive, well-managed open space network that will enhance the unique character of the region and enable Maricopa County to realize the full benefits of open space for people, environment, and economy. This is the 2018 update.
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